Capacitance of Organic Schottky Diodes Based on Copper Phthalocyanine （CuPc）

作     者：LI Zhong-Liang WU Zhao-Xin JIAO Bo MAO Gui-Lin HOU Xun 

作者机构：Key Laboratory of Photonics Technology for Information (Shaanxi Province) and Key Laboratory for Physical Electronics and Devices of the Ministry of Education School of Electronic and Information Engineering Xi'an Jiaotong University Xi'an 710049 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2010年第27卷第6期

页      面：175-178页

核心收录：

学科分类：080903[工学-微电子学与固体电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：国家教育部新世纪优秀人才支持计划 the Technology Program of Shaanxi Province 国家973计划 

主　　题：Organizations Beers Metals Aluminium Magnesium 

摘      要：The capacitance of an organic Schottky diode based on copper phthalocyanine （CuPc） is investigated. Based on the organic small-signal equivalent model established, we calculate the reverse capacitance CMetal Of the organic Schottky diode with different kinds of metal cathodes （Mg, Al, Au）. It is found that the reverse capacitance of the organic Schottky diode shows behavior as CMg 〉 CAl 〉 CAu at the same frequency, and according to our analysis, the reverse Schottky junction capacitance Cj is expected to have little effect on the reverse capacitance of the organic Schottky diode, and the space-charge limited current capacitance Us is considered to dominate the reverse capacitance, which limits the improvement of frequency characteristics of organic Schottky diodes.